Using high-resolution isotope-resolved mass spectrometry it was possible to identify the existence and production ofC~ + (in addition to lower charge states of fullerene ions) by electron-impact ionization of neutral C~o.
Electron impact induced production and isotope-resolved identification of C6+70 and sextuply-charged fragment ions of C70 and C60
β Scribed by P. Scheier; T.D. Mark
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 382 KB
- Volume
- 133
- Category
- Article
- ISSN
- 0168-1176
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Absolute and relative ionization cross sections of C, and C70 were measured in the range from threshold to 100eV, using a Knudsen cell mass spectrometric method. Pb was used as internal standard to calibrate the instrument sensitivity on an absolute scale. The vapour pressure of the fullerenes was o